1.Development and validation of a prognostic nomogram model for patients with the lower third and abdominal oesophageal adenocarcinoma
Zhengshui XU ; Dandan LIU ; Jiantao JIANG ; Ranran KONG ; Jianzhong LI ; Yuefeng MA ; Zhenchuan MA ; Jia CHEN ; Minxia ZHU ; Shaomin LI
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2025;32(02):201-207
Objective To establish an individualized nomogram model and evaluate its efficacy to provide a possible evaluation basis for the prognosis of lower third and abdominal part of oesophageal adenocarcinoma (EAC). Methods Lower third and abdominal part of EAC patients from 2010 to 2015 were chosen from the SEER Research Plus Database (17 Regs, 2022nov sub). The patients were randomly allocated to the training cohort and the internal validation cohort with a ratio of 7∶3 using bootstrap resampling. The Cox proportional hazards regression analysis was used to determine significant contributors to overall survival (OS) in EAC patients, which would be elected to construct the nomogram prediction model. C-index, calibration curve and receiver operating characteristic (ROC) curve were performed to evaluate its efficacy. Finally, the efficacy to evaluate the OS of EAC patients was compared between the nomogram prediction model and TNM staging system. Results In total, 3945 patients with lower third and abdominal part of EAC were enrolled, including 3475 males and 470 females with a median age of 65 (57-72) years. The 2761 patients were allocated to the training cohort and the remaining 1184 patients to the internal validation cohort. In the training and the internal validation cohorts, the C-index of the nomogram model was 0.705 and 0.713, respectively. Meanwhile, the calibration curve also suggested that the nomogram model had a strong capability of predicting 1-, 3-, and 5-year OS rates of EAC patients. The nomogram also had a higher efficacy than the TNM staging system in predicting 1-, 3-, and 5-year OS rates of EAC patients. Conclusion This nomogram prediction model has a high efficiency for predicting OS in the patients with lower third and abdominal part of EAC, which is higher than that of the current TNM staging system.
2.Mechanism of Herbal Cake-separated Moxibustion in Improving Neuroimmune Inflammation in Rats with Chronic Fatigue Syndrome by Interfering TLR4/MyD88/NF-κB Pathway
Chuntao ZHAI ; Yawei HOU ; Linjuan SHI ; Yixiao WANG ; Wei LI ; Yuefeng TIAN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(4):140-149
ObjectiveTo explore the mechanism of herbal cake-separated moxibustion using the classical formula Xiaoyaosan in alleviating neuroimmune inflammatory responses in chronic fatigue syndrome (CFS) rats, based on the regulation of the toll-like receptor 4 (TLR4)/myeloid differentiation factor 88 (MyD88)/nuclear transcription factor-κB (NF-κB) signaling pathway. MethodsFifty SPF-grade SD rats aged 6-8 weeks were randomly divided into five groups: Normal group, model group, sham herbal cake moxibustion group, Chinese medicine intragastric administration group, and herbal cake-separated moxibustion group, with 10 rats in each group. Except for the normal group, all other groups underwent a 21-day modeling process, followed by behavioral testing. The herbal cake-separated moxibustion and sham herbal cake moxibustion groups received interventions at the Shenque (CV8), Guanyuan (CV4), Zusanli (ST36), and Qimen (LR14) acupoints. The Chinese medicine intragastric administration group was treated with a Xiaoyaosan suspension via gavage. Behavioral tests were conducted after 10 days of continuous intervention. Serum levels of interleukin (IL)-1β, IL-6, and tumor necrosis factor-α (TNF-α), as well as hippocampal levels of IL-1β, IL-6, TNF-α, and NF-κB, were detected by enzyme-linked immunosorbent assay (ELISA). Morphological changes in the hippocampus were observed using hematoxylin-eosin (HE) staining. Real-time quantitative polymerase chain reaction (Real-time PCR) was used to detect mRNA expression levels of TLR4, MyD88, and NF-κB in the hippocampus. Western blot analysis was performed to detect the relative expression levels of TLR4, MyD88, NF-κB, and p65 proteins in the hippocampus. ResultsCompared with the normal group, the model group showed a significant decrease in upright times during the open field test (P<0.01), as well as significant reductions in total movement distance, resting time, and center region duration (P<0.01). In the tail suspension test, immobility time increased (P<0.01), and struggle times decreased (P<0.01). Serum and hippocampal levels of IL-1β, IL-6, and TNF-α, as well as hippocampal NF-κB levels and TLR4, MyD88, and NF-κB mRNA expression, were significantly elevated (P<0.01). After treatment, compared with the model group, the total movement distance and upright times in the open field test were significantly increased in all treatment groups (P<0.01), while resting time and center region duration were notably prolonged (P<0.05, P<0.01). Immobility time in the tail suspension test was significantly shortened (P<0.01), and struggle times significantly increased (P<0.05). Serum and hippocampal levels of IL-1β, IL-6, TNF-α, hippocampal NF-κB levels, and TLR4 and NF-κB mRNA expression were significantly reduced (P<0.05, P<0.01). Compared with the sham herbal cake moxibustion group, the herbal cake-separated moxibustion group showed a significant extension in center region duration during the open field test (P<0.05) and a significant increase in upright times (P<0.01). In the tail suspension test, immobility time was reduced (P<0.01), and struggle times increased (P<0.01). Serum TNF-α levels in the Chinese medicine intragastric administration group were significantly reduced (P<0.01), while serum IL-6 levels, as well as hippocampal levels of IL-1β, TNF-α, NF-κB, and TLR4, MyD88, and NF-κB mRNA expression, were significantly decreased in both the Chinese medicine intragastric administration group and the herbal cake-separated moxibustion group (P<0.05, P<0.01). Compared with the Chinese medicine intragastric administration group, the herbal cake-separated moxibustion group exhibited significantly increased upright times in the open field test (P<0.01). In the tail suspension test, immobility time was reduced (P<0.01), and struggle times increased (P<0.01). Serum IL-1β, hippocampal TNF-α levels, and TLR4, MyD88, and NF-κB mRNA expression were significantly decreased (P<0.05, P<0.01). ConclusionHerbal cake-separated moxibustion effectively improves fatigue and memory function in CFS rats, regulates neuroimmune inflammatory responses, and its mechanism may be related to the modulation of the TLR4/MyD88/NF-κB signaling pathway.
3.Mechanism of immunosuppression in rats by herb-partitioned moxibustion based on transcriptome sequencing technology
Yuefeng TIAN ; Luojie XIONG ; Huifang WANG ; Chuntao ZHAI ; Wei LI
Chinese Journal of Tissue Engineering Research 2025;29(5):978-988
BACKGROUND:Immunosuppression leads to impaired body immune function and aggravates the disease.Herb-partitioned moxibustion can effectively regulate immune function and improve immunity in the body,but its regulatory mechanism has not been elucidated. OBJECTIVE:To sequence immunosuppressed model rats treated with herb-partitioned moxibustion using bioinformatics techniques based on transcriptomics and to explore the mechanisms by which it regulates immunity. METHODS:Twenty-four Sprague-Dawley rats were randomly assigned to three groups:control,model,and herb-partitioned moxibustion groups,with eight rats in each group.The model and herb-partitioned moxibustion groups were subjected to establishment of an immune suppression model by intraperitoneal injection of cyclophosphamide at a dose of 35 mg/kg for 3 consecutive days.No interventions were administered to the control and model groups after modeling.In contrast,the herb-partitioned moxibustion group received moxibustion treatment at Zhongwan,Shenque,Guanyuan,and Zusanli acupoints using a combination of moxa and herbal cakes,once a day,for 10 consecutive days,with samples being collected the day after the end of the intervention.Peripheral blood was collected from all groups of rats to measure their white blood cell count.RNA-seq was performed on the Illumina sequencing platform,and differentially expressed genes were selected for bioinformatics analysis using the GO and KEGG databases. RESULTS AND CONCLUSION:Compared with the control group,the model group exhibited a significant decrease in white blood cell count(P<0.001).RNA-seq analysis identified 3 026 differentially expressed genes between the model and control groups,with 1 565 upregulated and 1 461 downregulated.There were 535 differentially expressed genes identified between the herb-partitioned moxibustion group and the model group,with 280 upregulated and 255 downregulated.The Venn diagram analysis revealed that 159 genes were downregulated in the model group compared with the control group.However,after moxibustion with herbal cakes,these genes were upregulated.Protein-protein interaction network analysis identified 10 core targets,including Oasl,Oas2,Isg15,Herc6,Mx2,Helz2,Mx1,Syk,Hspa1a,and Ret.According to GO and KEGG analyses,moxibustion with herbal cakes regulated the body through pathways related to immune response,viruses,angiogenesis,and the autoimmune system.To conclude,there is a significant association between herbal cake-separated moxibustion intervention and immune suppression targets,including Oasl,Oas2,Isg15,Herc6,Mx2,Helz2,and Mx1.The intervention exhibits regulatory effects in the pathways related to immune responses,viral activities,and angiogenesis.
4.The Effects of Tai Chi Training on Bone Density,Bone Turnover Markers,and Heart Rate Variability in High-Risk Osteoporosis Population
Jiaming LIN ; Chao LI ; Wei ZHAO ; Jun ZHOU ; Xiaoying CHEN ; Xiangyu XI ; Haijun HE ; Baohong MI ; Yuefeng CHEN ; Weiheng CHEN
Journal of Traditional Chinese Medicine 2025;66(15):1566-1571
ObjectiveTo explore the effects of the Tai Chi training on bone density, bone turnover markers, and heart rate variability for people with high-risk osteoporosis, and to provide evidence for the prevention of osteoporosis at early stage. MethodsSixty-six cases of people with high risk of osteoporosis were included, and they were divided into 33 cases each in the intervention group and the control group using the random number table method. The control group received osteoporosis health education three times a week, and the intervention group received Tai Chi training under the guidance of a trainer three times a week for 40 mins each time on the basis of the control group, and both groups were intervened for 12 weeks. Dual-energy X-ray absorptiometry was used to measure the bone density of L1~L4 vertebrae, bilateral femoral necks and bilateral total hips in the two groups before and after the intervention; enzyme-linked immunosorbent assay was used to determine bone turnover markers before and after the intervention, including pro-collagen type Ⅰ pro-amino-terminal prepropyl peptide (P1NP) and β-collagen type Ⅰ cross-linking carboxy-terminal peptide (β-CTX). Seven cases with good compliance in the intervention group were selected. After wearing the heart rate sensor, they successively performed Tai Chi training and walking activities recommended by the guideline for 20 mins each, and the heart rate variability (HRV) during exercise was collected, including time-domain indexes such as standard deviation of normal sinus intervals (SDNN), root-mean-square of the difference between adjacent RR intervals (RMSSD), frequency-domain metrics such as low-frequency power (LF), high-frequency power (HF), and low-frequency/high-frequency power ratio (LF/HF), as well as nonlinear metrics such as approximate entropy (ApEn), sample entropy (SampEn). ResultsFinally, 63 cases were included in the outcome analysis, including 30 cases in the intervention group and 33 cases in the control group. After the intervention, the differences of L1~L4 vertebrae, bone density of bilateral femoral neck and bilateral total hip in the intervention group were not statistically significant when compared with those before intervention (P>0.05), while the bone density of all parts of the control group decreased significantly compared with that before intervention (P<0.05), and the difference in the bone density of the L1~L4 vertebrae, bilateral femoral neck, and the right total hip before and after the intervention of the intervention group was smaller than that of the control group (P<0.05). The differences in P1NP and β-CTX between groups before and after intervention was not statistically significant (P>0.05). Compared with walking exercise, LF decreased, HF increased and LF/HF decreased during Tai Chi exercise (P<0.05); the time domain indexes and non-linear indexes between groups had no statistically significant difference (P>0.05). ConclusionTai Chi exercise can maintain lumbar, hip, and femoral bone density and improve sympathetic/parasympathetic balance in people at high risk for osteoporosis, but cannot significantly improve bone turnover markers.
5.Short-term efficacy of biomaterial sling through retropubic approach for female stress urinary incontinence
Xinqi PEI ; Yishuai ZHANG ; Yuefeng DU ; Man LI ; Xudong LI
Journal of Modern Urology 2025;30(12):1080-1083,1102
Objective To evaluate the efficacy and safety of biomaterial sling in the treatment of female stress urinary incontinence (SUI), so as to explore the possibility of replacing traditional synthetic materials with biomaterials in SUI surgery. Methods Clinical data of 22 SUI patients undergoing retropubic mid-urethral sling surgery in our hospital during Jan.and Dec.2023 were retrospectively collected. Perioperative parameters were analyzed, and all patients were followed up for more than one year. The quality of life was assessed using the incontinence impact questionnaire-short form-7 (IIQSF-7), numerical rating scale (NRS), and urogenital distress inventory-short form-6 (UDI-6). Results All 22 operations were successfully completed. The follow-up was 13-25 (mean 15.2±4.6) months, operation time (47.0±11.1) minutes, hospital stay (0.8± 0.2) days, and pain duration (6.1±4.9) days. One year after surgery, all patients'NRS, IIQSF-7 and UDI-6 scores were significantly reduced (P<0.001). One week after surgery, all patients were improved. No sling exposure or urinary tract infection was found during the follow-up. Conclusion Biomaterial sling is an effective and relatively safe method for the treatment of female SUI, demonstrating satisfactory short-term outcomes. However, the long-term effects still need further research.
6.Comparative analysis of emergency service capabilities in county-level hospitals in Zhejiang and Jiangsu Provinces
Yi YANG ; Zeng HUANG ; Silong ZHANG ; Xiafei ZHOU ; Zilong LI ; Yuefeng MA ; Guozhong CHEN ; Hengjin DONG
Chinese Journal of Emergency Medicine 2025;34(5):744-750
Objective:To analyze the differences in emergency rescue service capacities between county-level hospitals in Zhejiang and Jiangsu provinces, and propose targeted improvement suggestions.Methods:Cluster sampling was employed, with representative county-level hospitals recommended by provincial hospital alliances in Zhejiang and Jiangsu. Emergency departments voluntarily submitted data, resulting in 24 hospitals from Zhejiang and 34 from Jiangsu. Data were collected through the China County-Level Hospital Emergency Service Capability Evaluation System. Differences between provinces were analyzed. Spearman correlation analysis explored relationships between multidimensional indicators, and multivariate logistic regression identified factors influencing hospital grade B++ and above.Results:In terms of department scale, Jiangsu had a larger emergency department area (4 853 m 2vs. 1 927 m 2, P<0.001), more beds of comprehensive inpatient wards in the emergency department (25.5 beds vs. 5.5 beds, P=0.011), and higher scores for the ratio of emergency department area to beds (4.8 vs. 3.4, P=0.005) than Zhejiang. In terms of staffing, Jiangsu had a higher proportion of doctors with master's degrees or above (13.8% vs. 0.0%, P<0.001), a higher proportion of frontline emergency medical staff with over three years of clinical experience (100.0% vs. 91.5%, P=0.001), and more doctors (19 vs. 15, P=0.039) and nurses (46 vs. 32, P=0.039). In terms of quality and safety and medical service capacity, Zhejiang had a higher severe trauma resuscitation success rate (92.9% vs. 83.75%, P=0.003), annual emergency surgery volume (1 002 vs. 428, P=0.015), and number of emergency surgery procedures (125 vs. 42, P=0.027), but Jiangsu had a shorter emergency room stay time (87.5 min vs. 136.2 min, P=0.029). In terms of informatization, Zhejiang outperformed Jiangsu in all indicators, especially in patient information interconnection and sharing (100.0% vs. 82.4%, P=0.030) and in-hospital diagnosis and treatment timeline (91.7% vs. 73.5%, P=0.043). Correlation analysis showed that the total specialty scale score was significantly positively correlated with the in-hospital emergency rescue service capacity score ( r=0.576) and the staffing score ( r=0.455). The total evaluation score was significantly positively correlated with the informatization total score ( r=0.397) and the pre-hospital emergency rescue service capacity score ( r=0.322). Binary Logistic regression analysis showed that the emergency rescue service capacity score was significantly positively correlated with hospital grade ( B=1.431, P=0.03, OR=4.185, 95% CI:1.152-15.205). For every 1-unit increase in the emergency department area ( B=0.002, P=0.05), the probability of a hospital being upgraded to B++ or above increased by 0.2% ( OR=1.002, 95% CI:1.000-1.004). Conclusions:Both provinces exhibit distinct advantages in emergency department development. Departmental scale and configuration significantly impact emergency service capabilities, while staffing and quality management constitute core elements for improvement. Informatization construction notably enhances emergency service efficiency and quality.
7.BMSC-Exo alleviates depression-like behaviors in mice by inducing hippocampal energy metabolism and microangiogenesis
Weijia HU ; Lili CAI ; Xiaolan ZHU ; Yifeng LUO ; Zhihong CAO ; Yuefeng LI
Chinese Journal of Neuromedicine 2024;23(1):2-9
Objective:To investigate the effect of bone mesenchymal stem cells derived exosomes (BMSC-Exo) on improving hippocampal microangiogenesis, energy metabolism, and behaviors in depression mouse models.Methods:(1) Mouse bone marrow mesenchymal stem cells were isolated and cultured to extract BMSC-Exo; BMSC-Exo morphology was observed by transmission electron microscopy, BMSC-Exo particle diameter ranges were determined by Zetaview analyzer, and expressions of CD9 and CD63 in BMSC-Exo were detected by Western blotting. (2) Depression models were established in 2 mice by chronic unforeseeable mild stress (CUMS); 24 h after stereotaxic injection of phosphate buffer solution (PBS) or DiR labeled BMSC-Exo, BMSC-Exo uptake was detected by in vivo imaging system. (3) Thirty-six mice were randomly divided into control group, model group and BMSC-Exo group ( n=12); CUMS was used to establish depression models in the latter 2 groups; brain stereotaxic injection of 1 μL BMSC-Exo was given to mice in the BMSC-Exo group after modeling, and same amount of PBS was given to the control group; behaviors were observed by forced swimming test (FST), tail suspension test (TST) and open field test (OFT); hippocampal microvascular length and number were detected by alkaline phosphatase staining; energy metabolism in the hippocampus was detected by micro positron emission tomography/computed tomography (mPET/CT); glucose transporter 1 (GLUT1) expression in the hippocampus was detected by Western blotting. Results:(1) BMSC-Exo had a typical disk-like vesicle-like structure with particle size of (100.5±1.4) nm; Western blotting confirmed that CD9 and CD63 expressed in BMSC-Exo. (2) In vivo imaging showed no fluorescence in the brain and liver after PBS injection, but obvious local fluorescence after BMSC-Exo injection. (3) Compared with the control group, the model group and BMSC-Exo group had significantly longer rest time in FST and TST and shorter movement distance and time in the central region of OFT ( P<0.05); compared with the model group, BMSC-Exo group had significantly shorter rest time in FST and TST and longer movement distance and time in the central region of OFT ( P<0.05). Compared with the control group, the model group and BMSC-Exo group had significantly decreased standard uptake value (SUV) of regions of interest, microvascular length and number, and GLUT1 expression in the hippocampus ( P<0.05); compared with the model group, the BMSC-Exo group had significantly higher SUV, microvascular length and number, and GLUT1 expression in the hippocampus ( P<0.05). Positive correlations were noted between hippocampal microvascular length and SUV and between microvascular number and SUV in the 3 groups ( r=0.540, P<0.001; r=0.600, P<0.001). Conclusion:BMSC-Exo could promote microangiogenesis energy metabolism in the hippocampus to improve depression-like behaviors in depression mouse models.
8.Biocontrol Effect and Culture Condition Optimization of Trichoderma citrinoviride Strain Isolated from Rhizosphere of Atractylodes lancea
Kuo LI ; Sheng WANG ; Hongyang WANG ; Zheng PENG ; Xiuzhi GUO ; Tielin WANG ; Yuefeng WANG ; Lanping GUO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(15):192-199
ObjectiveRoot rot is one of the most serious diseases in the cultivation and production of Atractylodes lancea. Trichoderma spp. are effective in the biocontrol of root rot without causing environmental pollution. This study aims to isolate and study a Trichoderma strain capable preventing and controlling root rot from the rhizosphere of A. lancea and to solve the problem of disease prevention and control in the planting and production of A. lancea. MethodTrichoderma T2204 was isolated by the dilution-coating method and identified by ITS sequencing. The inhibitory activities of T2204 and its volatiles against two pathogenic fungal strains were examined by dual-culture and co-culture experiments. The biocontrol potential of T2204 on root rot of A. lancea and the effect of T2204 on the accumulation of medicinal compounds in the rhizosphere of A. lancea were investigated by pot experiments and GC-MS, respectively. In addition, the optimal medium, photoperiod, temperature, pH, and carbon and nitrogen sources for the culture of T2204 were explored. ResultThe Trichoderma isolate T2204 was identified as T. citrinoviride and had direct inhibitory effects on two highly pathogenic strains causing root rot. In the dual-culture experiments with the two pathogenic strains, T2204 showcased the inhibition rates of 77.90% and 76.80%, respectively. In the co-culture experiments with the two pathogenic strains, the volatile organic compounds produced by T2204 showed the inhibition rates of 57.11% and 81.11%, respectively. The pot experiments showed that the survival rate of A. lancea seedlings infected by root rot reached 100% after inoculation with T2204 and was only 50% in the case without inoculation of T2204. After 150 days of cultivation, the dry weight and atractylodin content of the rhizome of A. lancea plants treated with T2204 increased by 32% (P<0.05) and 11%, respectively, compared with the untreated group. The optimal conditions for the growth of T2204 were PDA or PSA medium, photoperiod of 12 h dark/12 h light, 25-30 °C, pH 5-6, carbon sources of glucose, D-fructose, soluble starch, and maltose, and the nitrogen sources of ammonium sulfate and ammonium dihydrogen phosphate. The optimal conditions for the sporulation of T2204 were PSA or CMA medium, photoperiod of 12 h dark/12 h light, 20-30 °C, pH 8, carbon source of sucrose, and nitrogen source of sodium nitrate. ConclusionT2204 could improve the growth and root rot resistance of A. lancea and promote the accumulation of medicinal compounds. The findings laid a foundation for the industrialized production and application of T2204 in the production of A. lancea in the future.
9.Research on Material Basis of Homologous and Heterogeneous Effect of Aurantii Fructus Immaturus and Aurantii Fructus Based on Total Statistical Moment Analysis and Molecular Connectivity Index
Xiao YUAN ; Yuefeng WU ; Shixiong LI ; Youzhi LIU ; Zhiqin YU ; Fuyuan HE ; Jin ZHOU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(3):161-168
ObjectiveTo investigate the material basis of homologous and heterogeneous effect of Aurantii Fructus Immaturus(AFI) and Aurantii Fructus(AF) based on the total statistical moment analysis and molecular connectivity index(MCI). MethodRelevant literature at home and abroad and Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCMSP) were consulted to establish the chemical composition database of AFI and AF, and set up their fingerprints by ultra-high performance liquid chromatography(UPLC), and the total statistical moments and similarity parameters of the fingerprint were calculated. According to MCI, all components of AFI and AF were divided into different component groups, the average values of 0-8th order(0χ-8χ) MCI of the common component groups of AFI and AF were calculated. ResultThe values of total zero-order moment(AUCT) of AFI and AF were (10.57±2.45)×106, (5.09±0.89)×106 μV·s, the values of total first-order moment(MCRTT) were (11.57±1.58), (12.10±1.29) min, the values of total second-order moments(VCRTT) were(24.49±2.30), (26.49±2.54) min2, respectively. It showed that qualitative and quantitative parameters of AFI and AF were significantly different. The components with high similarity such as neohesperidin, hesperidin and narirutin were screened as the common potential pharmacodynamic components of AFI and AF. The non-common components of AFI, such as alysifolinone and imperatorin, and the non-common components of AF, such as neoeriocitrin and isosakuranin, with high similarity were screened out as potential heterogeneous components of AFI and AF. The composition groups of AFI and AF were classified into six categories, and the similarities between the composition groups of AFI and AF and the total constituents were 0.872-0.979 and 0.918-0.997, the average values of 0χ-8χ MCI of alkaloids in AFI and AF were 3.65 and 3.14, the average values of 0χ-8χ MCI of flavonoids were 8.47 and 8.47, the average values of 0χ-8χ MCI of volatile oils were 2.71 and 3.48, respectively. It showed that there were some differences in MCI of chemical constituents(groups) between AFI and AF. ConclusionThe chemical constituents(groups) of AFI and AF not only differ in content and species, but also in structural characteristics and structure-activity relationship, which can provide a basis for further explaining the scientific connotation of homologous and heterogeneous effect of AFI and AF.
10.Exploration of the mechanism of micro ribonucleic acid-3197 in diabetic reti-nopathy based on nuclear factor κB signaling pathway
Shasha HAN ; Yuefeng LI ; Xinmeng XU
Recent Advances in Ophthalmology 2024;44(3):188-192
Objective To explore the mechanism of micro ribonucleic acid(miR)-3197 in diabetic retinopathy(DR)on the basis of the nuclear factor κB(NF-κB)signaling pathway.Methods A total of 47 DR patients admitted to Heng-shui People's Hospital from January 2021 to December 2021 were selected as the DR group,and 47 healthy individuals in the same period were collected as the control group.Their information in gender,age,fasting blood glucose(FBG),fast-ing insulin(FINS),triglycerides(TG),total cholesterol(TC)and miR-3197 were compared.The correlation between miR-3197 in DR patients and laboratory data was analyzed,and the receiver operating characteristic(ROC)curve of miR-3197 for DR diagnosis was drawn.The human retinal microvascular endothelial cells(hRMECs)were cultured in vitro and treated with 5.5 mmol·L-1 glucose[low glucose(NG)group]and 30 mmol·L-1 glucose[high glucose(HG)group],respectively.After transfecting with anti-miR-NC and anti-miR-3197,the cells were treated with 30 mmol·L-1 glucose(HG+anti-miR-NC group and HG+anti-miR-3197 group).Real-time fluorescence quantitative PCR was used to detect the relative expression level of miR-3197,flow cytometry was used to detect the apoptosis rate of hRMECs,enzyme-linked im-munosorbent assay was used for detecting tumor necrosis factor-a(TNF-a)and interleukin-6(IL-6),and Western blot was adopted to detect the expressions of aspartic protease 3 containing cysteine(cleaved caspase-3)protein,Bax protein and NF-κB signaling pathway-related proteins[phospho-NF-KB p65(p-p65),p65,phospho-NF-KB inhibited protein(p-IκBα),and NF-κB inhibited protein(IκBα)].Results The levels of FBG,FINS,TC and TG in the DR group were higher than those in the control group,and the differences were statistically significant(all P<0.001).The relative expression level of miR-3197 in the peripheral blood of patients in the DR group(2.76±0.67)was higher than that of the control group(1.03±0.34),and the difference was statistically significant(P<0.05).The miR-3197 level of patients in the DR group was positively correlated with FBG,FINS,TC and TG levels(r=0.672,0.587,0.511 and 0.423;all P<0.05).The ROC curve graph showed that the area under the curve was 0.919,with sensitivity and specificity of 85.11%and 89.36%,respectively.Compared with the NG group,the HG group showed a significant increase in cell apoptosis rate and the pro-tein expressions of cleaved caspase-3,Bax,TNF-a,IL-6,p-IκBa and p-p65(all P<0.05);compared with the HG+anti-miR-NC group,the HG+anti-miR-3197 group showed a significant decrease in cell apoptosis rate and the protein expres-sions of cleaved caspase-3,Bax,TNF-a,IL-6,p-IκBa and p-p65(allP<0.05).Conclusion The miR-3197 is highly ex-pressed in the peripheral blood of DR patients and high glucose-induced hRMECs.Down-regulation of miR-3197 can allevi-ate high glucose-induced hRMEC apoptosis and inflammatory injury,and its mechanism of action may be related to the inhi-bition of the NF-κB signaling pathway.

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